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Luba_88 [7]
3 years ago
8

Please help 15 points

Mathematics
2 answers:
daser333 [38]3 years ago
3 0

Answer:

  1. x- + 10 y- +4
  2. not proportional

Step-by-step explanation:

i think the 1st one is wrong but hope this helps!

seropon [69]3 years ago
3 0
I think the second one is non portional
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I need help with C. Idk how to do it.
Rina8888 [55]

Answer:

after 1.25 hours

Step-by-step explanation:

1. make 130 your y value

  130 = 220 - 72x

2. subtract 220 from both sides

  -90 = -72x

3. divide by -72 on both sides

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7 0
3 years ago
PLEASE HELP ME!!!!!!!!!
vitfil [10]
<h2>1)</h2>

(x - 4) {}^{2}  - 28 = 8 \\ (x - 4) {}^{2}  = 8 + 28 \\ (x - 4) {}^{2}  = 36

This must be true for some value of x, since we have a quantity squared yielding a positive number, and since the equation is of second degree,there must exist 2 real roots.

\sqrt{(x - 4) {}^{2} }  =  ± \sqrt{36}  \\x - 4 = ±6 \\ x _{1}- 4 = 6 \:  \:  \:  \:  \:  \:  \: \:  \:  \:  x _{2}- 4 =  - 6 \\ x_{1} = 6 + 4 \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x_{2} =  - 6 + 4 \\ x_{1} = 10 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: \:  \: x_{2} =  - 2

<h2>2)</h2>

Well he started off correct to the point of completing the square.

(x - 3)  {}^{2}  = 16 \\ x - 3 = ±4 \\  \: x_{1}  - 3 = 4 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x_{2}  - 3 =  - 4 \\ x_{1}  = 7 \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x_{2}  =  - 1

8 0
1 year ago
Plz help with iready
Iteru [2.4K]

Answer:

118

Step-by-step explanation:

150+16%=174

174 - 32% = 118.32

118.32=118(to nearest whole number)

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2 years ago
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Korvikt [17]

Answer: =

\frac{1}{2^7} \\

Step-by-step explanation:

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3 years ago
The equation of a line in slope intercept form is y=mc+b where m is the x-intercept. True or False?
ASHA 777 [7]
The equation of a line in slope intercept form is y=mc+b where m is the x-intercept. False. M represents the slope
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